Polished cold parts...

The stainless can look almost as good as aluminum, just be a little more aggressive with it, and take a little extra time
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Trying to compare stainless to aluminum is like comparing apple to oranges. Aluminum will always have a "white" colored finish, no matter how you polish it. Stainless will always have the "darker" color when polished, which looks close to chrome. With out a doubt, stainless, when polished properly will always look better then aluminum. It's just a little harder to polish.

